unexpected result on basename/dirname

[C de-Avillez]

Hello,

I cannot explain the following difference between running a 'find -exec
basename {}', and a 'find -exec echo $(basename {})', and the same for
dirname. I am running GIT coreutils off /usr/local, so the absolute
paths. I would really appreciate help in undersstanding what is the
difference.

address@hidden:~/Téléchargements$ find . -type f -exec echo {} \;
./test.sh
./ati-driver-installer-9-3-x86.x86_64.run
./test/aFile

address@hidden:~/Téléchargements$ find . -type f -exec
/usr/local/bin/basename {} \;
test.sh
ati-driver-installer-9-3-x86.x86_64.run
aFile

address@hidden:~/Téléchargements$ find . -type f -exec echo
$(/usr/local/bin/basename {}) \;
./test.sh
./ati-driver-installer-9-3-x86.x86_64.run
./test/aFile

address@hidden:~/Téléchargements$ find . -type f -exec dirname {} \;
.
.
./test

address@hidden:~/Téléchargements$ find . -type f -exec
/usr/local/bin/dirname {} \;
.
.
./test

address@hidden:~/Téléchargements$ find . -type f -exec echo
$(/usr/local/bin/dirname {}) \;
.
.
.

address@hidden:~/Téléchargements$ /usr/local/bin/basename --version
basename (GNU coreutils) 8.4.12-5d4952
Copyright (C) 2010 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later
<http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Written by David MacKenzie.
address@hidden:~/Téléchargements$

Thank you,

..C..

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